ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,460,909, issued on Nov. 4.
"Polymer jacked solid core projectile" was invented by Michael R. Harris (Dover, Fla.), David P. Armstrong (Bloomington, Ind.), Joseph T. Burkart (Bloomfield, Ind.) and Lucius A Taylor IV (Crane, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polymer jacketed projectile with metal core. The projectile includes a metal bullet core and a monolithic polymer bullet jacket surrounding a portion of the bullet core. The jacket includes a series of radial driving bands cut into the jacket in a graduated configuration at increasing thicknesses. The graduation and increasing thickness of the driving bands allows gradua...